Q4 (a) A plastic bar ACB having two different solid circular cross sections is held between rigid supports as shown in the Figure Q4(a). The diameters in the left- and right-hand parts are 50 mm and 75 mm, respectively. The corresponding lengths are 225 mm and 300 mm. Also, the modulus of elasticity E is 6.0 GPa, and the coefficient of thermal expansion a is 100 x 10-6/ºC. The bar is subjected to a uniform temperature increase of 30°C. (i) Calculate the compressive force in the bar. (ii) Calculate the maximum compressive stress. (iii) Calculate the displacement of point C

Q4 (a) A plastic bar ACB having two different solid circular cross sections is held between rigid supports as shown in the Figure Q4(a). The diameters in the left- and right-hand parts are 50 mm and 75 mm, respectively. The corresponding lengths are 225 mm and 300 mm. Also, the modulus of elasticity E is 6.0 GPa, and the coefficient of thermal expansion a is 100 x 10-6/ºC. The bar is subjected to a uniform temperature increase of 30°C. (i) Calculate the compressive force in the bar. (ii) Calculate the maximum compressive stress. (iii) Calculate the displacement of point C

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

175 mm
A
A 50 mm C
225 mm
300 mm
Figure Q4(a)

Q4 (a) A plastic bar ACB having two different solid circular cross sections is held between rigid
supports as shown in the Figure Q4(a). The diameters in the left- and right-hand parts
are 50 mm and 75 mm, respectively. The corresponding lengths are 225 mm and 300
mm. Also, the modulus of elasticity E is 6.0 GPa, and the coefficient of thermal
expansion a is 100 x 10-6/ºC. The bar is subjected to a uniform temperature increase of
30°C.
(i)
Calculate the compressive force in the bar.
(ii)
Calculate the maximum compressive stress.
(iii)
Calculate the displacement of point C

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